摘要
以Altera公司的CPLD芯片为直流电参数测量仪核心,以ICL7135芯片为直流电参数采集电路核心,所设计的监测仪能够实现对直流电压/电流的并行采样,电路结构简单、AD转换精度高、解决了分时切换方式下监测数据丢失问题。
DC electric parameter measuring instrument is designed in this paper.It uses CPLD chip of Altera as the core,configured with LED display circuit,control signal isolation circuit and the key circuit.DC electrical parameters acquisition circuit adopts ICL7135 chip as the core,which realizes the single DC voltage / current acquisition.The monitor can achieve parallel sampling of DC voltage / current.The circuit structure is simple,and the AD conversion precision is high.It can solve the monitoring data loss problem,which has a certain reference value.
出处
《重庆电子工程职业学院学报》
2013年第3期156-158,共3页
Journal of Chongqing College of Electronic Engineering
